Kolakoski Constant in all languages in chars. Achievements Cheevos Holes Languages Medals Miscellaneous All Holes 12 Days of Christmas 24 Game 99 Bottles of Beer Abundant Numbers Abundant Numbers (Long) Arabic to Roman Arithmetic Numbers Arrows Ascending Primes ASCII Table Billiards brainfuck Calendar Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz CSS Colors Cubes Day of Week DFA Simulator Diamonds Divisors Emirp Numbers Emirp Numbers (Long) Emojify Evil Numbers Evil Numbers (Long) Factorial Factorisation Farey Sequence Fibonacci Fizz Buzz Foo Fizz Buzz Bar Forsyth–Edwards Notation Fractions Game of Life Gijswijt’s Sequence Happy Numbers Happy Numbers (Long) Hexdump Hilbert Curve Intersection Inventory Sequence ISBN Jacobi Symbol Kaprekar Numbers Kolakoski Constant Kolakoski Sequence Leap Years Levenshtein Distance Leyland Numbers ln 2 Look and Say Lucky Numbers Lucky Tickets Mahjong Mandelbrot Maze Medal Tally Minesweeper Morse Decoder Morse Encoder Multitap Input Musical Chords N Queens Niven Numbers Niven Numbers (Long) Number Spiral Odious Numbers Odious Numbers (Long) Ordinal Numbers PalindromemordnilaP Pangram Grep Partition Numbers Pascal’s Triangle Pernicious Numbers Pernicious Numbers (Long) Poker Polyominoes Prime Numbers Prime Numbers (Long) Proximity Grid QR Decoder Quine Recamán Repeating Decimals Reverse Polish Notation Reversi Rijndael S-box Rock-paper-scissors-Spock-lizard Roman to Arabic ROT13 Rule 110 Scrambled Sort Set Seven Segment SI Units Sierpiński Triangle Smith Numbers Spelling Numbers Star Wars GPT Star Wars Opening Crawl Sudoku Sudoku (Fill-in) Ten-pin Bowling Tic-tac-toe Time Distance Tongue-twisters Topological Sort Tower of Hanoi Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Apéry’s Constant Binary Lambda Calculus Connect Four Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> ALGOL 68 Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir Erlang F# Factor Forth Fortran Gleam Go GolfScript Groovy Haskell Hexagony J Janet Java JavaScript jq Julia K Kotlin Lua Nim OCaml Pascal Perl PHP PowerShell Prolog Python R Raku Rockstar Ruby Rust Scheme sed SQL Swift Tcl TeX V VimL Wren Zig 05AB1E APL ArkScript Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Bytes Chars Scoring Bytes Chars Language All ><> ALGOL 68 Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir Erlang F# Factor Forth Fortran Gleam Go GolfScript Groovy Haskell Hexagony J Janet Java JavaScript jq Julia K Kotlin Lua Nim OCaml Pascal Perl PHP PowerShell Prolog Python R Raku Rockstar Ruby Rust Scheme sed SQL Swift Tcl TeX V VimL Wren Zig Experimental Language 05AB1E APL ArkScript Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Hole All 12 Days of Christmas 24 Game 99 Bottles of Beer Abundant Numbers Abundant Numbers (Long) Arabic to Roman Arithmetic Numbers Arrows Ascending Primes ASCII Table Billiards brainfuck Calendar Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz CSS Colors Cubes Day of Week DFA Simulator Diamonds Divisors Emirp Numbers Emirp Numbers (Long) Emojify Evil Numbers Evil Numbers (Long) Factorial Factorisation Farey Sequence Fibonacci Fizz Buzz Foo Fizz Buzz Bar Forsyth–Edwards Notation Fractions Game of Life Gijswijt’s Sequence Happy Numbers Happy Numbers (Long) Hexdump Hilbert Curve Intersection Inventory Sequence ISBN Jacobi Symbol Kaprekar Numbers Kolakoski Constant Kolakoski Sequence Leap Years Levenshtein Distance Leyland Numbers ln 2 Look and Say Lucky Numbers Lucky Tickets Mahjong Mandelbrot Maze Medal Tally Minesweeper Morse Decoder Morse Encoder Multitap Input Musical Chords N Queens Niven Numbers Niven Numbers (Long) Number Spiral Odious Numbers Odious Numbers (Long) Ordinal Numbers PalindromemordnilaP Pangram Grep Partition Numbers Pascal’s Triangle Pernicious Numbers Pernicious Numbers (Long) Poker Polyominoes Prime Numbers Prime Numbers (Long) Proximity Grid QR Decoder Quine Recamán Repeating Decimals Reverse Polish Notation Reversi Rijndael S-box Rock-paper-scissors-Spock-lizard Roman to Arabic ROT13 Rule 110 Scrambled Sort Set Seven Segment SI Units Sierpiński Triangle Smith Numbers Spelling Numbers Star Wars GPT Star Wars Opening Crawl Sudoku Sudoku (Fill-in) Ten-pin Bowling Tic-tac-toe Time Distance Tongue-twisters Topological Sort Tower of Hanoi Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Experimental Hole Apéry’s Constant Binary Lambda Calculus Connect Four Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 401st Shanethegamer 🇺🇸 575 85 106ms 8 Apr 2021 402nd MeWhenI 🇻🇦 574 102 494ms 24 May 2024 403rd Yewzir 🇧🇪 574 234 50ms 22 Dec 2023 404th dokutan 573 199 4ms 12 Aug 2024 405th BREMAUCY 🇫🇷 570 102 11ms 19 Jul 2025 406th AlephSquirrel 566 53 77ms 3 Jan 2023 407th stefangimmillaro 563 171 2,367ms 19 Nov 2024 408th m-tkach 🇺🇦 560 240 53ms 17 Dec 2022 409th dokutan 557 217 105ms 28 Mar 2024 410th Natanaelel 🇸🇪 556 88 59ms 10 Sep 2021 411th RockOfStone 556 213 1,687ms 4 Nov 2021 412th jatloe 554 105 60ms 26 Sep 2024 413th MeWhenI 🇻🇦 553 238 298ms 10 Feb 2023 414th dokutan 553 243 400ms 19 Aug 2024 415th dokutan 552 106 489ms 8 days ago 416th KatieLG 🇬🇧 550 89 105ms 7 Jan 2026 417th Shanethegamer 🇺🇸 548 158 301ms 20 May 2022 418th dokutan 548 236 396ms 24 Sep 2025 419th AkashTandon167 544 107 11ms 1 Nov 2021 419th dokutan 544 107 39ms 21 Mar 2025 419th blaztoma 🇱🇹 544 107 33ms 13 Oct 2025 422nd olivermrose 🇺🇸 543 90 119ms 28 Oct 2021 422nd BrenSchaap 543 90 53ms 13 Nov 2021 424th CaedenHarper 🇨🇦 542 243 299ms 17 Nov 2025 425th MeWhenI 🇻🇦 540 78 40ms 28 Feb 2025 426th edsrzf 🇳🇿 540 177 118ms 20 Dec 2024 427th nullie 539 108 116ms 9 Jun 2022 428th CaedenHarper 🇨🇦 539 240 442ms 16 Oct 2025 429th snoozingnewt 🇨🇦 537 110 364ms 14 Oct 2025 430th Yewzir 🇧🇪 537 245 287ms 3 Jan 2024 431st dokutan 537 427 4ms 8 Dec 2023 431st JOrE20 537 427 4ms 20 Dec 2025 433rd marcin7Cd 534 109 12ms 9 Feb 2021 433rd OllieBoyne 🇬🇧 534 109 154ms 25 May 2022 433rd scpchicken 🇵🇼 534 109 12ms 28 Feb 2023 433rd CutSandstone 534 109 34ms 8 Jul 2024 437th dokutan 534 371 1,393ms 13 Jan 2025 438th dokutan 533 222 1ms 3 Apr 2024 439th msbranicky 533 247 334ms 3 Oct 2023 439th stefangimmillaro 533 247 437ms 13 Dec 2024 441st scpchicken 🇵🇼 531 93 1,045ms 17 Feb 2023 442nd pschmid0 🇺🇸 531 182 184ms 9 Oct 2022 443rd jerrandolph 531 248 803ms 26 Sep 2025 444th Yewzir 🇧🇪 530 228 104ms 6 Jul 2023 445th qpwoeirut 529 110 291ms 11 Aug 2025 445th Lv0Sys 🇵🇱 529 110 11ms 4 Dec 2025 447th dokutan 527 250 288ms 6 Jan 2024 448th m-tkach 🇺🇦 527 570 27ms 20 Jan 2024 449th SirBogman 🇺🇸 526 205 12ms 2 Jan 2022 450th CedricGebistorf 524 111 10ms 9 Mar 2022 451st lynn 523 574 28ms 6 Aug 2023 452nd coreynash 522 131 39ms 24 Oct 2023 453rd Lv0Sys 🇵🇱 520 94 51ms 4 Dec 2025 454th Shanethegamer 🇺🇸 520 249 699ms 25 Sep 2025 455th CaedenHarper 🇨🇦 519 219 433ms 26 Oct 2025 456th namelessiw 518 113 433ms 5 Mar 2024 457th MeWhenI 🇻🇦 518 114 352ms 15 Feb 2023 458th rschwa6308 🇺🇸 515 113 13ms 28 Jun 2021 458th namelessiw 515 113 11ms 11 Jan 2024 458th FortuiteMan 🇫🇷 515 113 68ms 18 Dec 2025 461st johndevou 514 210 33ms 18 Nov 2021 462nd MeWhenI 🇻🇦 514 239 209ms 3 Dec 2021 463rd commandz0 🇺🇸 513 114 509ms 15 Jan 2024 464th lifthrasiir 🇰🇷 511 578 7ms 19 Dec 2024 465th MeWhenI 🇻🇦 511 588 28ms 6 Jun 2023 466th Yewzir 🇧🇪 509 223 5ms 18 Feb 2024 467th dokutan 508 242 206ms 1 Jul 2025 468th RaBa21 🇭🇺 506 115 19ms 1 Aug 2025 469th CatsAreFluffy 505 116 527ms 15 Jan 2024 469th JunkIce 505 116 415ms 7 Mar 2025 471st petroselo 502 116 10ms 16 Nov 2021 471st amollberg 🇸🇪 502 116 23ms 30 Jan 2022 471st CatsAreFluffy 502 116 16ms 10 Jan 2023 471st JunkIce 502 116 19ms 7 Mar 2025 471st robin-scragg 502 116 73ms 21 Oct 2025 476th dokutan 502 226 5ms 11 Jan 2024 477th tomh1012 501 227 484ms 18 Sep 2025 478th m-tkach 🇺🇦 486 222 1ms 17 Dec 2022 478th Yewzir 🇧🇪 486 222 2ms 22 Dec 2023 480th knutae 🇳🇴 485 120 11ms 29 Jun 2021 First Prev 401–480 of 1,759 Next Last